Locomotive-frame.



W. M. SHEEHAN.

LOGOMOTIVE FRAME. APPLIGATION FILED APR.21, 1914.

Patented Oct. 20, 1914.

Mfneaaea Wan om rinrrE-n STATES PATENT OFFICE.

WILLIAM M. 'SHEEHAN, or s'r. LOUIS, MISSOURI, 'ASSIGNOR. TO COMMONWEALTH STEEL contrANY, or $1. Louis, MISSOURI, A conronarron on NEW JERSEY.

LOCOMdTIVE-FRAME.

T 0 all whom it concern:

Be it known that I, WILLIAM M. SHEEHAN, a citizen of the United States, residing at the city of St. Louis,.State of Missouri,havc

invented a'certain new. and useful Improvement in Locomotive-Frames, of which the followingis a full, clear, and exact descrip tion, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which Figure l is a plan view of a locomotive.

55 of Fig. 1. Fig. 6 is afsectional' view taken approximately on the line 6-6 of Fig. 1.

'My inventionrelates generally to locomot1ve frames and more particularly to a onep'iece rear extension fo-r t he main frame of' the locomotive.

Heretofore in the construction of locomoor extension, it has generally been the practice to construct said rear frame-or extension.

of separate castings or forgings, which after being properly assembled, are connected to e the main frame by machine-fit bolts. -Suoh construction has many disadvantagesfor the reason that the strains and constant Vibration developed when the frame is in service 'tends to loosen the joints between the assembled parts, thereby destroying the stability of the frame and the alinement and positiono-f the various bearings and-brackets which receive certain devices-particularly associated with and carried by the rear frame or extension. Furthermore, by making the framein several pieces, necessitates aconsiderable amount of machine work and otherfinishing; likewise the setting of a 'end portions of these rails and with the cormentioned by casting the rear frame or extension in a single piece, and forming inte Specification of Letters Patent. Paltgnted 313, 20, 1914,, App1ication'filed April 31,1914. seria1'1vo.s3s ,441. i i

v gral therewith. the necessary brackets and bearings, thus producing a verystrdti'g, rigid and substantial structure which, 'inservice, effectually resists all strains to which it is ordinarily subjected, and which is not affected by the constant vibration developed in servlce. V

With the above and other objects in .view, my invention consists in certain novel features of construction and arrangement of parts, hereinafterfmore fully described and claimed. i l

Aslshown in the accompanying drawings my improved rear frame or extensionin eludes a pairlof parallel side members 10 which may be of any desired cross sectional of channels with inwardly presented flanges.

The forward ends of the webs of these side members are provided with perforations .11 in 'order to receive bolts or like devices'which serve as means foririgidly fixing the rear extensio'n'or frame to the side members A' of r the main frame of the locomotive.

The forward ends of the'side members 10 are united by transversely disposed integral edge of which is provided with a rearwardly projecting flange 14. This web or wall and its flange serve as a support and point ofconnection for'the front end of the locomo tive fire box.-

of the wall 13 are inwardly projecting hori- Formed integral'with the lower portions of the members 10 immediately to the rear I zontalll'y disposed plates or'brackets 15-which serveas supports for equalizer fulcruins. v

'Forme'd integral with the lower portions "of'the members 10 and to the rear of the 'equalizer-,-fulcrums 15 are transversely disposed'i'ail s l6'which serve" to reinforce and strengthen that portion of the frame or extension which is located immediately above the rear truck, and formed integral with the responding portions of the members 10 are plates 17 which serve as bearings and points of attachment for the pedestals B which receive the journal boxes of the rear truck.

Formed integral with the inner faces of the members 10 between the transverse rails 16 are pairs of vertically disposed ribs or flanges 18 which form guides or bearingribs' flange 22, said wall and flange serving as a support and point of attachment for the rear end of the locomotive fire box.

Formed integral with'the rear ends of the members 10 and to: the rear of the plate 21 is a structure which includes, a horizontally disposed top plate 23, a bottom plate 24, an intermediate plate 25, a transversely disposed front end wall 26, and a pair of Vertically disposed longitudinally extending dinally extending walls 27.

walls 27 which are parallel with the members 10. Formed integral with the plates 24 and 25. are lugs 28, the same being provided with vertically alined openings 29, which are adapted to receive the draw-bar attaching pin. a The rear draw bar of the locomotive occupies the chamber 29 which is formedbetween the plates 24 and 25 and the longitu- The upper front face of the front wall 26 is notched or recessed as designated by 30 so as to form a support and seat for the cab bracket.

The top plate 23 serves as a base or bracket ,for the grate shaker cylinder. Formed integral with the forward ends of the members 10 are depending lugs or brackets 81 which are perforated transversely in order to serve as points of attachment for the clevises of the safety chains.'

A rear extension for locomotive frames of my improved construction. is very strong, can be readily produced inasmuch as it can be easily cast in a single piece, and by forming integral with said frame a number of essential brackets, bearings and the like, much time, labor and consequent expense incident to the attaching of separate parts can be saved. Furthermore, the elimination of joints in the frame does away with structural weaknesses which invariably develop when anassembled or fabricated structure is subjected to service strains and vibration.

A one piece casting can beproduced in much less time and with less labor than a frame built up from a number of structural shapes and castings, which are united by bolts, rivets and-the like, and it. has been demonstrated in practice that an extension frame cast in up frame. l It will be readily understood that mlnor changes in the size, form and construction of the various parts 'of my improved extension frame can be made and substitutedfor those herein shown and described, without departing from the spirit ofmy invention, the scope of which is set forth in the appended claims. I'claim: 1. A rear frame for locomotives cast in a single piece and comprising a pair-of :side members, a series of transverse members, and there being a draw bar pocket formedin the rear end ofsaid frame.

2. A rear frame for locomotives cast av I single piece and comprlsing side members,

a series'of transverse members, and equalizer, fulcrums.

A rear frame for locomotives cast in a. single piece andcomprisin'g" side members, transverse members, and vertically disposed spring bearing ribs on the innerfaces of said side members.

1. 1A rear frame for locomotives cast in a single piece and comprising side members, a seriesof transverse members, and trailer truck spring guides. v

5. A rear frame for-locomotives cast in a single; piece and comprising side members, a series of transverse members, and trailer truck spring shackles seats.

6. A rear frame for locomotives cast in a single piece and comprising side members, a series of transverse members, and safety chain clevis attaching brackets. 7. A rear frame for locomotives cast in a single piece; and comprising a pair of side members, and a ser esof' transverse members, one of whichserves as a bracketfor' the grate shaker oylinderii v 8. A rear frame for locomotives cast in a singlepiece and comprising 'a pair of side members, and a series of transverse members, one of whichserves as a support and point of attachment for therear fire box connection. "i

' 9. A rearframe for. locomotives cast in a single piece and comprising a pair of side members-and a seriespoftransverse members, one of which serves as a support and point of attachment for the front firebox connection. a

10. A rear frame for locomotives cast in a single piece and comprising a pair of side members, plates and webs uniting the, forward ends of said side members, plates and-webs uniting the rear ends of said members, and there being adraw bar pocket formed between the plates and webs at the rear ends of said members.

11. A rear frame for locomotives cast in a single piece and comprising ,side members, end members, a pair of intermediate shaker cylinder brackets, and safety chain 10 transverse members, and pedestal attachclevis brackets. ing plates integral with the, end portions 01 -In testimony whereof I hereunto aflix my said transverse members. signature. in the presence of two vwitnesses,

12. 'A rear frame for locomotives cast in this 18th day -of March, 1914. I a single piece and comprising a pair of side. WILLIAM S HEEI-IAN.-

members, a series of transverse members, a Witnesses:

pair of equalizer fulcrums, pedestal attach- .HALC. 13mm, 1

ing plates, spring shackle seats, grate I C, T. Wnsrnslm. 

